4mm shaft encoder/potentiometers

[adamwg]

Hi,

Does any one know where to buy rotary pots and encoders with 4mm shaft?

I've been searching the internet all week and cant find them anywhere in the UK. I think Reichelt do some. But as im not buying enything else from them and because of the minimum order quantity this is'nt an option.

[ultra]

did you find them?

the only knobs without indicators that i like have a 1/8" (4mm) shaft, so i need 4mm encoders as well!

[ultra]

i think i found a solution to this problem.  the alps encoders i purchased actually have close to a 4mm hole (slightly bigger) from the underside that turns with the encoder shaft.  i'm going to buy 4mm metal rods and glue it in, drill a hole in the perfboard for it to fit, and attach the knob. seems like it should be sturdy.

[Screaming_Rabbit]

i think i found a solution to this problem.  the alps encoders i purchased actually have close to a 4mm hole (slightly bigger) from the underside that turns with the encoder shaft.  i'm going to buy 4mm metal rods and glue it in, drill a hole in the perfboard for it to fit, and attach the knob. seems like it should be sturdy.

;D ;D ;D... :-X ;)

[ultra]

sorry i have no solution to that.  be careful!  i did that when i was ten.  three times.  in one summer. all were moving cars i ran into.  :/

[adamwg]

No luck yet.

Good idea about glueing a 4mm shaft in. i might try and take apart an encoder with a 6mm plastic shaft, put it in a drill and kind of make a makeshift lathe and machine it down.

Farnell now stock mentor knobs with and without an indicator that will fit 6mm shafts. They are by far the best i've found so far.

[ultra]

i was just inquiring about those mentor knobs the other day.  511.61 look nice and have no indicator.  513.61 would be a nice matching wheel for the seq.  they're awaiting delivery to farnell.  perhaps i'll order eventually.  they don't give shipping rates (i'm in u.s.) until you order, though.

the only other problem would be getting it to adapt to the d-shaft encoders i already ordered.  perhaps i'll just go with this knob (http://www.allelectronics.com/cgi-bin/item/KNB-150/310/KNOB_FOR_1_8%22#34;_SHAFT_.html) and use my 4mm shaft gluing idea.

let me know what you end up doing.